A form of dry oil is Squalane oil. Squalane is a refined form of squalene, which can be found in small amounts in our own sebum. You can apply dry oils on your face, skin, and even on your hair to lock in moisture. Dry oils are much more common than you think. Some of my favorite recommendations are below.
During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink). The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.
Reverse transcription PCR (RT-PCR) uses mRNA rather than DNA as the starting template. First, the enzyme reverse transcriptase uses the mRNA template to produce a complementary single-stranded DNA strand called cDNA in a process known as reverse transcription. Next, DNA polymerase is used to convert the single-stranded cDNA into double-stranded DNA.